5645423 has 16 divisors (see below), whose sum is σ = 6741504. Its totient is φ = 4626720.

The previous prime is 5645407. The next prime is 5645447. The reversal of 5645423 is 3245465.

It is not a de Polignac number, because 5645423 - 2⁴ = 5645407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5645473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18236 + ... + 18542.

It is an arithmetic number, because the mean of its divisors is an integer number (421344).

Almost surely, 2^5645423 is an apocalyptic number.

5645423 is a deficient number, since it is larger than the sum of its proper divisors (1096081).

5645423 is a wasteful number, since it uses less digits than its factorization.

5645423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422.

The product of its digits is 14400, while the sum is 29.

The square root of 5645423 is about 2376.0098905518. The cubic root of 5645423 is about 178.0596420933.

The spelling of 5645423 in words is "five million, six hundred forty-five thousand, four hundred twenty-three".